Granted Patent
Utility
US 4,729,792 · App. 06/866,224
Microcapsules, printing inks and their production
Inventor:
Michael Seitz
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: May 22, 1986
Inventor
Michael Seitz
Assignee (at issue)
Standard Register, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.